Vaporizer device for explosive-engines.



J. S. WRlGHT. VAPORIZER DEVICE FOR EXPLOSIVE ENGINES.

APPLECATION FILED JULY 9,1917.

Patented Apr. 8, 1919.

JOHN S. WRIGHT, OF- OWENSBORO, KENTUCKY.

VAPORIZER DEVICE FOR EXPLOSIVE-ENGINES.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed July 9, 1917. Serial No. 179,319.

To all whom it may concern:

Be it known that I, JOHN S. WRIGHT, a citizen of the United States, and residing at Owe-nsboro, in the county of Daviess and State of Kentucky, have invented a new and useful Improvement in Vaporizer Devices for Explosive-Engines, of which the following specification is a full disclosure.

My invention relates to internal combustion or explosive engines and in particular to fuel supply devices in connection with the intake manifold of the engine for vaporiz ing hydro-carbon oils of different quality or kind.

An object of the invention is to provide the inlet manifold of an internal combustion engine with a fuel supply conduit extended into the exhaust manifold in a zig-z-ag or return bend course for heating and vaporizing the fuel passing therethrough from one source of supply, and in providing the conduit with a branch inlet between that portion within the exhaust manifold andinlet manifold for admitting fuel from' a second source, rendering possible the use of different grades or kinds of hydro-carbon oils requiring different treatment for .vaporizlng, and permitting a transfer to be readily and quickly made, alternately from one kind to the other.

Another object of the invention is to provide a deflected fuel supply conduit projected into the exhaust manifold of the engine for heating the products passing through said conduit and draining any liquid products collecting in said conduit back to the inlet end.

A further object of the invention is to provide a vaporizing device, asa return bend conduit forming a part of a supply line from the carbureter to the engine intake and internally rovidingan inclined wall as a heated ba e plate against which the hydro-carbon products entering the vaporizer may strike for assisting in vaporizing the same.

Other features and advantages of the invention in part relate to details of. construction of various elements and their relation to one another in providing a manifold fuel supply system for utilizin different kinds and quality of fuel, and or readily vaporizing those of low volatile grade, all of which will be more fully set forth in the de- Scription of the accompanying drawings,

forming apart of this specification, and in such drawings llke characters of reference .denote corresponding parts throughout the several views, of which:

Figure 1 is a side elevation of an explosive engine with the portion containing my invention in section.

Fig. 2 is a section taken on an irregular line 2-2, Fig. 1, with a portion thereof at one end shown in elevation.

Fig. 3 is a detail central vertical sectlon through a modified form of vaporizer device forming a part of the intake conduit leading from a carbureter to the intake manifold of the engine.

4 is a detail central vertical section through another modified form of vaporizer device having transverse baffle webs functioning as means for breaking up the fuel.

Fig. 5 is a plan section on line 55, Fig. 4. The engine in construction may represent any one of the numerous designs commercially known as either single, multiple or plural cylinders, of the two or fourcycle type, and as the details of the engine construction do not enter materially into the present invention, description thereof will be omit-ted, excepting as to such parts of the engine as may be necessary for a clear understanding of-the invention.

Referring to the drawings, 1 indicates the engine cylinder, .2 the fuel intake manifold having communication individually with each one of the engine cylinders of the series. The particular intake manifold shown, interiorly, for a portion of its length has a division wall 3, forming two adjacent passages 4 and 6. The passage 6 is about double the length of the passage 4 and communicates at a central point 5 with the end of passage 4. This provides for a uniform distribution of the fuel to the various lead branches of the passage 6 respectively con- .necting with the inlet openin'gsyof the cylinders of the engine. The intake manifold is shown as bolted to the engine cylinder heads in a removable manner. The exhaust manifold 7 is bolted to the cylinder heads and provided with conduit leads connecting with the respective exhaust ports of the several cylinders. The exhaust manifold is shown as located directly beneath the intake manifold to bring the same to a lower elevation, the purpose of which will be later described;

it mcreases in cross-sectional area toward the conduit runs. The vaporizer fits into an opening in the end of the exhaust manifold and is provided with an abutting flange 11 at its'conduit ends for securing the vaporizer to the exhaust manifold andas a closure for the manifold opening. The side walls of the vaporizer are also spaced from the side walls of the manifold so as to expose the entire circumference of the vaporizer to the heat of the exhaust gases of the engine.

The web 10 of the vaporizer qualifies as a heated baflie for the particles of liquid against which they strike as drawn into the vaporizer, checking their course and vaporizing them. The lower surface of the web 10 may be provided with serrations or corrugations, as shown in the modified design, Fig. 3, as well as the upper inclined wall of the return run of the vaporizer conduit. The vaporizer may further be provided with transverse baflie webs 25, as shown in the modified designs Figs. 4, 5, and which func tion as means for breaking up the fuel. All the interior surfaces of the vaporizer are inclined in a direction which Will result in draining any liquid rearwardly to the inlet end or intothe carburetor 12. The carbureter 12 connects directly with the inlet port of the vaporizer, and in construction may follow any commercial design or type for emitting air and a liquid fuel in a spray, with the suction created by the moving engine pistons or by fuel pump pressure. The carbureter is provided with the usual regulatable needle valve for controlling the volume or amount of liquid fuel or vapor to the vaporizer.

The outlet port of the vaporizer connects with a curved conduit 13, which in turn eonnects with the inlet ports of the intake manifold, or, as shown, with intake coupling conduit l-l. Said coupling 14 has a valve 15 interposed therein for throttling the mixture in the entrance to the intake manifold. The valve 15 may be of the butterfly-type shown, piston, rotating or any other style, manually or automatically operated or controlled, as may best .meet the requirements.

The curved conduit 13 intermediately has a cylindrical valve body portion 16 with portopenings for three ways, two of which establish the continuity of the passages through the conduit 13 from the vaporizer 8 to the manifold intake, and a third port as a branch to establish communicationwith a passage connection with the carbureter 17. The carburetor 17 provides the supply of'a highly volatile liquid fuel or fuel of a dif-- ferent specific gravity than that supplied from the carbureter 12, and which will vaporize without being passed through the heater.

For the purposes herein, it may be specified that carbureter 1.2 feeds kerosene as the fuel and carburetor 17 gasolene.

The carbureter 17 similar to ca-rbureter 12, may represent any design or type of constructioncommercially known, so as not to require description specifically or in detail.

The valve body 16 is provided with a nipple projection 18 for securing the carbureter 17 and furnishes an entry port diagonally intermediate with the ports communicating with the conduit 13, so that communication may be alternately established through the valve 19 with either carbureter 12 or 17. The valve 19 is of a rotary piston type, cylyndrical, to fit the valve bore of the body with a way or conduit 20 therethrough, adapted to be brought into registry with the various ports of the body. In the position shown in Fig. 1, the valve 19 is set to establish communication through the conduit 13 for taking the fuel supply from carbureter 12, cutting out carbureter 17. The Valve 19 is shown as operated manually by a handle 21. and a one-third turn of the handle to the right will position the valve to close the port The fuel supply to the engine can be quickly changed from one grade or quality to another by the control of valve 19, assuming that kerosene and asolene represent the tw different kinds of Fuel used; and gasolene for starting purposes.

When the engine is cold the valve is shifted to connect the "intake manifold with the carbureter 17, after which, when the engine warms up, the valve may be shifted to cut out the carbureter 17 and connect-carbureter 12 with the intake manifold, which fuel must pass through the vaporizer 8 or a heated zone for heating the fuel products and converting the same into vapor, making the lower volatile fuel as efiicien-t as the higher when it reaches the engine cylinder.

The vaporizer 8 is shown as tapped to receive pipe fitting 22 for admitting water or steam which is vaporized or superheated, as the case may be, as it is drawn through the vaporizer and mixed with the fuel products coming from the carbureter 12.

The different kinds of fuel may also represent one kind but of different grades, as, for instance, what is commercially known as high and low power gasolene, in which meaeee the higher-priced and grade oil can be used for starting and the lower for general or continued running of the engine;

Having described my invention, I claim:

1. The combination with an exhaust manifold of an explosive engine having an opening through one end thereof,a casing member projecting into said manifold through said opening and providing a closure therefor, said casing interiorly divided by an inclined wall and thereby forming a return bend conduit having its ends respectively connected to and in communication with a carbureter and intake manifold for heating the products passing through said conduit from the carbureter to the intake manifold.

2. The combination with an exhaust manifold of an explosive engine, a casing member projecting through an opening in said manifold and flanged to provide a closure for said 0 ening, said casing interiorly having an inc ined wall providing a return bend passage through said casing, the lower surface of said wall providing a baflle for the incoming products and the upper surface a return drain.

3. The combination with an exhaust maJ1i-' fold of an explosive engine having an opening therethrough at one end, a casing mem--' passing throu h said conduit, and a series of cross web ba es extending laterally of the conduit.

In witness. whereof, I hereunto subscribe my name, as attested by the two subscribing witnesses.

' J NO. S. WRIGHT. Witnesses:

J NO. L. NEUBAUR, JESSE GABBERT.

A $5 clined walls forming baflles for fuel products 

